Home / 890,027.80-1,334,452.02-490,859.80

Finding the Fourth Proportional to 890,027.80, 1,334,452.02 and 490,859.80

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Solution

The fourth proportional to 890,027.80, 1,334,452.02 and 490,859.80 is: 735,964.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,027.80 : 1,334,452.02 = 490,859.80 : x
  2. Step 2: Convert to fraction form
    890,027.80/1,334,452.02 = 490,859.80/x
  3. Step 3: Cross multiply
    890,027.80x = 1,334,452.02 × 490,859.80
  4. Step 4: Simplify right side
    890,027.80x = 655,028,851,646.80
  5. Step 5: Solve for x
    x = 655,028,851,646.80/890,027.80
  6. Step 6: Final answer
    x = 735,964.49

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.